Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150015—Source of blood
  • A61B5/150022—Source of blood for capillary blood or interstitial fluid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150053—Details for enhanced collection of blood or interstitial fluid at the sample site, e.g. by applying compression, heat, vibration, ultrasound, suction or vacuum to tissue; for reduction of pain or discomfort; Skin piercing elements, e.g. blades, needles, lancets or canulas, with adjustable piercing speed
  • A61B5/150167—Adjustable piercing speed of skin piercing element, e.g. blade, needle, lancet or canula, for example with varying spring force or pneumatic drive
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150175—Adjustment of penetration depth
  • A61B5/15019—Depth adjustment mechanism using movable stops located inside the piercing device housing and limiting the travel of the drive mechanism
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
  • A61B5/150381—Design of piercing elements
  • A61B5/150412—Pointed piercing elements, e.g. needles, lancets for piercing the skin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
  • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
  • A61B5/150541—Breakable protectors, e.g. caps, shields or sleeves, i.e. protectors separated destructively, e.g. by breaking a connecting area
  • A61B5/150564—Protectors removed by pulling or pushing
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
  • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
  • A61B5/15058—Joining techniques used for protective means
  • A61B5/150618—Integrally moulded protectors, e.g. protectors simultaneously moulded together with a further component, e.g. a hub, of the piercing element
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/150007—Details
  • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
  • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
  • A61B5/150694—Procedure for removing protection means at the time of piercing
  • A61B5/150717—Procedure for removing protection means at the time of piercing manually removed
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
  • A61B5/15101—Details
  • A61B5/15103—Piercing procedure
  • A61B5/15107—Piercing being assisted by a triggering mechanism
  • A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
  • A61B5/15101—Details
  • A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
  • A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
  • A61B5/15101—Details
  • A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
  • A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
  • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/15—Devices for taking samples of blood
  • A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
  • A61B5/15186—Devices loaded with a single lancet, i.e. a single lancet with or without a casing is loaded into a reusable drive device and then discarded after use; drive devices reloadable for multiple use
  • A61B5/15188—Constructional features of reusable driving devices
  • A61B5/15192—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing
  • A61B5/15194—Constructional features of reusable driving devices comprising driving means, e.g. a spring, for retracting the lancet unit into the driving device housing fully automatically retracted, i.e. the retraction does not require a deliberate action by the user, e.g. by terminating the contact with the patient's skin

Definitions

• the present invention relates to a puncture device used for collecting force blood such as a fingertip prior to blood analysis, and a puncture needle cartridge for replacement thereof.
• FIG. 10 is a cross-sectional view of a conventional puncture device 1100.
• the natural position of the plunger 1002 is regulated by the total length of the first compression panel 1000, and when puncturing, the plunger 1002 is biased in the distal direction by the restoring force of the first compression panel 1000.
• the second compression panel 1001 is biased toward the rear end by the restoring force.
• the charge lever 1003 slides backward to attach the puncture needle 1004 to the puncture device, the urging force for puncture is stored in the first compression panel 1000 and the second compression panel 1001 at the same time.
• FIG. 11 is a cross-sectional view of a conventional puncture needle cartridge 1100.
• puncture needle cartridge 1101 includes puncture needle holder 1005, lancet body 1007 having puncture needle 1004, and puncture needle protection cap 1006 that protects puncture needle 1004.
• the puncture needle holder 1005 houses the lancet body 1007.
• the lancet body 1007 is housed so as to be movable in the axial direction inside the puncture needle holder 1005. Further, by providing the lancet body 1007 with the large diameter portion 1008, the lancet body 1007 is prevented from moving toward the opening of the puncture needle holder 1005, that is, toward the distal end unless a predetermined force is applied.
• the puncture needle cartridge 1101 configured as described above is attached to the puncture device 1100, and the lancet body 1007 is fitted into the plunger 1002 of the puncture device 1100.
• the plunger 1002 is moved by the urging means, so that the lancet body 1007 is ejected in the distal direction, and the opening force of the puncture needle holder 1005 is projected.
• the site is punctured.
• the lancet body 1007 is moved in the opposite direction (rear end direction) by the urging means of the puncture tool 1100, and the puncture needle 1004 is again moved to the puncture needle holder. Stored in 1005.
• Patent Document 1 Japanese Unexamined Patent Publication No. 2000-245717
• the puncture needle cartridge 1101 shown in FIG. 11 is used, it is possible to safely replace the puncture needle, but the puncture needle cartridge 1101 in FIG. It is a structure that can be used. In other words, since the puncture needle cartridge 1101 that has been used once and removed the puncture tool force can be attached to the puncture tool again, the urging force can be reduced by re-mounting it. If stored, the opening force of the puncture needle holder 1005 can be made to project the puncture needle 1004 any number of times. For this reason, the puncture needle 1004 once used may not be replaced and reused, which may cause infection problems.
• puncture needle 1004 may protrude if puncture needle protection cap 1006 is not attached when puncture tool 1000 is attached. Furthermore, the lancet main body 1007 is provided with a large diameter portion 1008, and the lancet main body 1007 cannot move unless a predetermined force is applied. When the large diameter part 1008 is unlocked and the puncture needle cartridge 1101 removed from the puncture device is pointed downward, the puncture needle 1004 may protrude from the opening of the puncture needle holder 1005, and the cap should be There is a problem that it is dangerous if it is not attached o
• the present invention has been made to solve the conventional problems as described above, and simplifies the manufacturing process of the puncture device and prevents the puncture needle from being pierced multiple times.
• Another object of the present invention is to provide a puncture device and a puncture needle cartridge which can adjust the puncture speed and can safely discard the puncture needle after use.
• a puncture device holds a puncture needle in a housing having an opening at a front end in a detachable manner, and slides in the front-rear direction of the housing.
• a puncture device comprising a plunger that can be held and a pulling panel that urges the plunger in the front-rear direction.
• the plunger has a fixed axis around a rotation axis that is provided behind the plunger.
• a lever that is rotatable within a range is attached, a front end of the pulling panel is fixed to a first pulling panel fixing piece fixed in the housing, and a rear end of the pulling panel is rotatable
• the second pulling panel fixing part is hooked on a second pulling panel fixing part provided on the lever, and the second pulling panel fixing part moves to the rear end side in conjunction with the movement to the rear end side of the plunger.
• Pull the pull panel in the axial direction of the puncture device The pulling panel urges the plunger toward the front end of the housing through the second pulling panel fixing portion and the lever by a restoring force generated by extension in the axial direction.
• a fulcrum shaft provided in the housing contacts a side edge portion of the rotatable lever between the rotation shaft and the second pulling panel fixing portion. After the contact, the plunger As the fulcrum shaft pushes down the pivotable lever backward while moving further forward due to inertial force, the pulling panel is extended again through the pivotable lever. The plunger is urged in the rear end direction by a restoring force due to the extension of.
• the plunger in the puncture device according to claim 2 of the present invention, is provided with a first protrusion and engages with the first protrusion.
• a locking plate is provided, and the urging of the plunger toward the front end of the housing by the restoring force generated by the extension of the pulling panel in the axial direction is related to the first protrusion and the locking plate.
• the puncture device according to claim 3 of the present invention is the puncture device according to claim 2, wherein the restoring force of the pulling panel is adjusted by changing the position of the lock plate in the axial direction.
• a puncture speed adjustment mechanism capable of adjusting the puncture speed is provided.
• the puncture device according to claim 4 of the present invention is the puncture device according to any one of claims 1 to 3, wherein the puncture needle is provided inside the housing after the puncture operation is completed.
• a puncture needle cartridge ejecting mechanism for ejecting the puncture needle cartridge is provided, having an ejector rod that abuts against the inner end surface of the cartridge and pushes it outward.
• the puncture needle cartridge according to claim 5 of the present invention includes a lancet body having a puncture needle, a lancet having a puncture needle protection cap force for protecting the puncture needle, and an lancet body having an opening.
• the puncture needle cartridge comprising a puncture needle holder that is movably housed inside the lancet body, one end of the lancet body is connected to the lancet body, and the other end is on the distal end side of the lancet body.
• the puncture needle holder further comprises locked means for cooperating with the arm means, and the lancet body includes the arm means from the locked means. From the initial position of the lancet body located on the rear end side or the first position, which is a puncture preparation position, to the second position, where the puncture needle protrudes, is stored so as to be movable along the axial direction. The lancet body moves in the puncture direction from the first position, and the arm means cooperates with the locked means of the puncture needle holder to move the lancet body of the lancet body.
• the locked means While being elastically deformed outward, the locked means comes into contact with a connecting portion at one end of the arm means, and the movement in the puncturing direction is locked.
• the lancet When inserted into the puncture device from the rear end side of the body, the arm means engages with the housing of the puncture device and elastically deforms toward the center of the lancet body, so that the locked hand of the puncture needle holder is engaged.
• the lancet body moves from the first position to the second position to perform a puncturing operation, and when the puncture needle cartridge is removed after the puncture is completed, When the puncture needle cartridge is pulled, the lancet body moves away from the puncture needle holder and returns from the third position, which is the puncture end position, to the first position.
• the puncture needle cartridge is pulled, the engagement between the arm means and the housing of the puncture device is released, and the elastic deformation of the arm means toward the center of the lancet body is released.
• the puncture needle cartridge according to claim 6 of the present invention is the puncture needle cartridge according to claim 5, wherein the locked means is formed by a convex portion provided inside the puncture needle holder,
• the puncture needle protection cap protects the puncture needle and allows the lancet body to be fixed so that the lancet body does not move within the puncture needle holder when the puncture needle cartridge is inserted into the puncture device.
• the puncture needle cartridge having the puncture needle protection cap is inserted into a puncture device, the lancet body is fixed so as not to move within the puncture needle holder, and the arm means and the housing of the puncture device And the arm means is elastically deformed toward the center of the lancet body and the puncture needle protective cap is removed.
• the puncture needle cartridge according to claim 7 of the present invention is the puncture needle cartridge according to claim 5, wherein the lancet body force has a first convex portion on a body thereof, and the puncture needle holder One has a groove engaging with the first convex portion in the axial direction, the groove guides the first convex portion, and the lancet main body extends axially in the puncture needle holder. It is characterized by moving.
• the puncture needle cartridge according to claim 8 of the present invention is the puncture needle cartridge according to claim 5, wherein the lancet body force cooperates with a rear end surface of the puncture needle holder at a rear end of the trunk portion. And a second convex portion.
• the puncture needle cartridge according to claim 9 of the present invention is the puncture needle cartridge according to claim 8, wherein the puncture needle cartridge is formed by incorporating the lancet into the puncture needle holder.
• the second convex portion is configured to be elastically deformable material force and has a shape inclined toward the rear end of the trunk portion of the lancet body, and when the lancet portion and the puncture needle holder are assembled, A rear end is fitted into a tip of the puncture needle holder, and the second convex portion is incorporated while being elastically deformed.
• one end of the pulling panel is fixed, and the other end is hung on the tip of a lever attached to the plunger so as to rotate within a specified range, and the plunger is moved to the rear end side.
• the pulling panel is extended in the axial direction by moving to the rear end side in conjunction with the movement, and the plunger can be urged in the front end direction by the restoring force generated by the extension.
• the pivotable lever rotates about a rotation shaft provided in the plunger, and the plunger further moves in the front end direction, and through the pivotable lever, the plunger moves.
• the pulling panel is extended, and this restoring force can urge the plunger toward the rear end.
• Ne in can be configured, it is possible to prevent a plurality of times piercing of the puncture needle along with simplified fabrication process of the puncture device. [0020] Further, by changing the position of the lock plate and adjusting the urging force, it is possible to adjust the puncture speed, and to optimize the puncture speed to reduce how pain is felt.
• a puncture needle with a case and an eject mechanism allows the puncture needle and the puncture needle that touches the skin (case) to be discarded after puncture, preventing infection. And safety such as injury prevention by the puncture needle can be enhanced.
• the puncture needle cartridge of the present invention comprises a lancet body having a puncture needle and a puncture needle holder, the lancet body has arm means, and the puncture needle holder cooperates with the arm means. Since the movement of the lancet body in the puncturing direction is locked when the arm means and the locked means cooperate, the puncture needle protrudes during puncturing. Thus, the safety of the puncture needle cartridge can be improved.
• the arm means of the lancet body and the locked means of the puncture needle holder have cooperated when the puncture needle cartridge with the puncture needle protective cap once used is attached to the puncture tool.
• the puncture needle cartridge with the puncture needle protective cap once used is attached to the puncture tool.
• the puncture needle holder groove guides the first convex portion of the lancet body so that the lancet body moves in the axial direction within the puncture needle holder, the lancet body is placed in the puncture needle holder. Therefore, it is more effective in reducing pain by performing straighter movements.
• the second convex portion that cooperates with the rear end surface of the puncture needle holder is provided at the rear end of the body portion of the lancet body, it is possible to prevent the lancet body from coming off from the puncture needle holder, and to improve safety. There is an effect to increase.
• the second convex portion has a shape that is configured to be elastically deformable and has a shape that is inclined toward the rear end of the body portion of the lancet body.
• FIG. 1 (a) is a diagram showing a configuration of a puncture device according to embodiment 1 of the present invention.
• FIG. 1 (b) is a diagram showing a configuration of a puncture device according to the first embodiment of the present invention.
• FIG. 2 is a diagram showing the movement of the plunger and the state of the pull panel in the first embodiment of the present invention.
• FIG. 3 is a diagram showing an example of a lock plate position adjustment mechanism (puncture speed adjustment mechanism) in Embodiment 1 of the present invention.
• FIG. 4 is a diagram showing an example of a puncture device for attaching a puncture needle cartridge according to the second embodiment and performing puncture.
• FIG. 5 is a configuration diagram showing a puncture needle cartridge according to the second embodiment.
• FIG. 6 is a configuration diagram showing a lancet of the puncture needle cartridge according to the second embodiment.
• FIG. 7 is a cross-sectional view showing a puncture needle holder of a puncture needle cartridge according to Embodiment 2 of the present invention.
• FIG. 8 is a diagram showing the incorporation of a lancet and a puncture needle holder in the puncture needle cartridge according to Embodiment 2 of the present invention.
• FIG. 9 (a) is a cross-sectional view showing an internal configuration of the puncture device equipped with the puncture needle cartridge according to Embodiment 2 of the present invention before puncturing.
• FIG. 9 (b) is a cross-sectional view showing the internal configuration of the puncture device equipped with the puncture needle cartridge according to Embodiment 2 of the present invention in the puncture standby state.
• FIG. 9 (c) is a cross-sectional view showing an internal configuration at the time of puncturing of the puncture device equipped with the puncture needle cartridge according to Embodiment 2 of the present invention.
• FIG. 9 (d) is a cross-sectional view showing the internal configuration of the puncture device equipped with the puncture needle cartridge according to Embodiment 2 of the present invention after puncturing.
• FIG. 9 (e) is a cross-sectional view of the puncture device when the puncture needle cartridge according to Embodiment 2 of the present invention is discarded.
• FIG. 9 (f) shows the puncture needle cartridge according to Embodiment 2 of the present invention when the puncture needle cartridge is used once and the puncture needle cartridge with the puncture needle protection cap removed is attached to the puncture device.
• FIG. 6 is a cross-sectional view showing the internal configuration of the puncture device.
• FIG. 10 is a cross-sectional view of a conventional puncture device.
• FIG. 11 is a cross-sectional view of a conventional puncture needle cartridge. Explanation of symbols
• a puncture device according to Embodiment 1 of the present invention will be described with reference to FIG.
• FIG. 1 is a configuration diagram showing a puncture device according to Embodiment 1 of the present invention.
• Fig. 1 (a) is a cross-sectional view of the eject mechanism including the eject rod 9, eject rod panel 10, eject knob 12, eject lock pawl 13, and lock pawl panel 14. ) Is a cross-sectional view of a state where a mechanism outside the jet is attached.
• the puncture device mainly includes a base plate 1 provided inside a housing 15 and a plunger 2 slidably held by the base plate 1.
• the housing 15 and the base plate 1 may be integrally formed.
• the housing 15 is provided with an opening 15b into which the puncture needle cartridge 16 is inserted at the tip, and the opening 15b has a receiving part 6a for restricting the amount of movement when the plunger 2 moves in the axial direction.
• the needle depth adjustment knob 6 is fitted so as to be rotatable.
• the receiving portion 6a of the needle depth adjusting knob 6 has a spiral shape, and the amount of movement of the plunger 2 in the axial direction can be changed by rotating the adjusting knob 6 with respect to the nose and the lousing 15.
• the receiving portion 6a and the needle depth adjustment knob 6 are shown as being integrated. However, they may be composed of separate parts.
• the plunger 2 includes a puncture needle holding portion 2a, a first protrusion 2b, a sliding restriction portion 2c, and a force from the tip portion.
• a puncture needle cartridge 16 is detachably fitted to the puncture needle holding portion 2a.
• a lancet body 16b for holding the puncture needle 16a is slidably held in the puncture needle holder 16d, and a puncture needle protection cap for protecting the puncture needle 16a is provided at the tip of the puncture needle 16a.
• 16c is provided. Force to remove the puncture needle protection cap 16c when using the puncture device Since the puncture needle 16a is located inside the puncture needle holder 16d, the user of the puncture device does not feel fear without looking at the needle. Can puncture
• the first protrusion 2 b is provided on the plunger 2 and engages with the lock plate 5.
• the sliding restriction portion 2c of the plunger 2 restricts the sliding of the plunger 2 in the distal direction by contacting the receiving portion 6a.
• the lever 3 is engaged with the rotary shaft 2d so as to be able to rotate within a certain range, and the rear end of the pull panel 4 whose front end is fixed to the first pull panel fixing piece lb is the second pull. It is engaged with the panel fixing part 3a.
• FIG. 2 is a diagram illustrating the state of the pulling panel 4 and the lever 3 when the plunger 2 is in the natural position, the puncture preparation position, and the puncture position.
• the natural position represents the position where the pull panel 4 has moved the plunger 2 through the lever 3 in the forward direction of the housing 15, and the puncture preparation position is the position where the plunger 2 When pushed to the rear end side, the plunger 2 is moved to the rear end side of the puncture tool while extending the pulling panel 4 in the axial direction, but the first protrusion 2b and the lock plate 5 are moved by the movement.
• the plunger 2 is moved in the distal direction by the biasing force in the distal direction by the pull panel 4 and the plunger 2 is moved forward by the inertial force of the plunger 2 beyond the natural position. Indicates the position of the plunger 2 in the state of moving in the end direction.
• the operator attaches the puncture needle cartridge 16 to the puncture needle holding portion 2a of the plunger 2, and then presses the plunger 2 toward the rear end.
• the plunger 2 moves in the rear end direction
• the lever 3 whose rotation in the left direction is restricted also moves in the rear end direction, whereby the pull panel 4 is expanded in the axial direction.
• the urging force of the plunger 2 in the front end direction causes the pulling panel 4 to extend in the axial direction, move the plunger 2 in the front end direction, and the first protrusion 2b of the plunger 2
• this engagement is obtained by locking the biasing of the plunger 2 toward the front end.
• the urging force toward the front end of the plunger 2 at this time is determined by the amount of extension of the pulling panel 4, so it can be adjusted by changing the position of the lock plate 5, and thus the puncture speed can be adjusted. It is.
• Various configurations of the puncture speed adjustment mechanism by changing the position of the lock plate 5 are conceivable. An example is shown in FIG.
• the lock position adjustment projection 5a is connected to the lock plate 5, and the speed adjustment knob 5a is configured by engaging the lock position adjustment projection 5a with the spiral groove 8a of the speed adjustment knob 8. By rotating 8, the position of the lock position adjustment projection 5a in the axial direction is changed, and the position of the lock plate 5 can be moved in the front-rear direction of the housing 15.
• Pain at the time of puncture is said to depend on the puncture speed, the straightness of the puncture needle, and the shape of the needle tip.
• the puncture speed is controlled by the puncture speed adjustment mechanism. This makes it possible to provide a puncture device with less pain.
• the eject lock pawl 13 and the lock pawl panel 14 are for locking the puncture needle cartridge ejecting mechanism against the urging force of the eject rod panel 10. Ejection is performed by releasing the eject lock state with the eject knob 12 described above.
• the tip of the eject rod 9 hits the rear end of the puncture needle holder 16d so that the cover is pushed forward of the housing.
• the puncture needle cartridge 16 can be pushed out while the 16a is stored in the back of the puncture needle holder 16d, and the safety of the puncture cartridge 16 after removal can be ensured.
• the front end of the pulling panel 4 is fixed to the housing 15 via the first pulling panel fixing piece lb.
• the end is engaged with the second pulling panel fixing portion 3a of the lever 3 that is engaged with the plunger 2 so as to be rotatable within a certain range, and in conjunction with the movement of the plunger 2 toward the rear end side of the puncture tool,
• the rear end of the pulling panel 4 is moved to the rear end side of the puncture tool, and the spring 4 is expanded in the axial direction.
• the plunger 2 can be urged and moved toward the front end of the housing 15 via the second pulling panel fixing portion 3a.
• the urging means for urging the plunger in the front end direction and the rear end direction can be constituted by one pulling panel.
• a puncture needle cartridge according to Embodiment 2 of the present invention will be described below with reference to FIGS.
• FIG. 4 is a diagram showing an example of a puncture device that performs puncture with the puncture needle cartridge according to the second embodiment.
• the puncture needle cartridge 102 according to the second embodiment is attached to the puncture device 101.
• the direction in which the puncture needle protrudes is the tip direction, and the direction opposite to the tip direction (the direction opposite to the arrow in Fig. 4) is the rear end direction.
• FIG. 5 is a configuration diagram showing a puncture needle cartridge according to the second embodiment.
• the puncture needle cartridge 102 has a puncture needle holder 201, a puncture needle protection cap 202, and a lancet body 203.
• the puncture needle protection cap 202 covers the puncture needle of the lancet body 203 and is housed in the inner diameter portion 205 of the cylindrical puncture needle holder 201 as a lancet 204 composed of the puncture needle protection cap 202 and the lancet body 203.
• the puncture needle cartridge 102 according to the second embodiment is housed so that the lancet body 203 can move in the puncture needle holder 201 in the axial direction so that the puncture needle can protrude.
• FIG. 6 is a configuration diagram of the lancet 204.
• the lancet 204 has a lancet body 203 having a puncture needle 301 and a puncture needle protection cap 202 that protects the puncture needle 301
• the puncture needle 301 is a lancet body 203 that has a puncture needle protection cap 202. It is protected by a puncture needle protection part 307 having the same shape as the body part of the body.
• the lancet body 203 has an arm means 302, a lancet body first convex portion 303, and a lancet body second convex portion 304.
• the arm means 302 has a locking portion 305 that is one end thereof connected to the lancet body 203, and a tip end portion 306 that is the other end is opened in a tapered manner toward the tip end side of the lancet body 203. Further, the arm means 302 is elastically deformed in the center direction or the outward direction of the lancet body 203.
• the first convex portion 303 is formed in an elongated shape, and is provided on the body portion of the lancet body 203 at two locations on the left and right sides in the axial direction.
• the second convex portion 304 is provided at two positions on the right and left sides of the lancet body 203 at the rear end of the trunk portion in the axial direction.
• FIG. 7 is a cross-sectional view showing puncture needle holder 201.
• the puncture needle holder 201 has a skin contact portion 402 with an opening 401 formed at the tip, and the inside thereof is formed by a convex portion. Has a locking means 403 that cooperates. Further, the puncture needle holder 201 is engaged with the first convex portion 303 of the lancet body 203, and has a puncture needle holder groove 404 as a guide for moving the lancet body 203 in a straight line in the axial direction. Yes.
• the puncture needle holder 201 has a puncture needle holder rear end surface 405 that cooperates with the lancet body second convex portion 304 of the lancet body 203 to prevent the lancet body 203 from coming off in the distal direction.
• the first and second convex portions are each provided in two locations.
• the number is not limited, and for example, only one location may be provided. .
• the shape of the first convex portion is long, the shape is not limited to this, and any shape may be used as long as the lancet body 203 is moved in a straight line by the guide of the puncture needle holder groove 404.
• the lancet body 203 has the first and second convex portions, and the puncture needle holder 201 has a groove that engages with each convex portion.
• the lancet body 203 is configured to have a groove and the puncture needle holder 201 has a convex portion in the axial direction, and the groove and the convex portion are engaged with each other, so that the lancet body 203 is formed. You can make it go straighter.
• the puncture needle cartridge 102 shown in FIG. 5 is configured by incorporating a lancet 204 into the inner diameter portion 205 of the puncture needle holder 201.
• the rear end of the lancet body 203 is fitted from the opening 401 of the puncture needle holder 201.
• the second convex portion 304 has an elastically deformable material force such as grease, and further, for example, the shape of the second convex portion 304 is inclined toward the rear end of the body portion of the lancet body.
• the lancet body 203 can be easily pushed into the position shown in FIG. 5 while elastically deforming the second convex portion 304 by making the shape easy to fit into the puncture needle holder 201.
• the lancet body can be easily assembled into the puncture needle holder, and the number of assembling steps for the puncture needle cartridge can be reduced.
• the position of the lancet body 203 where the assembly of the lancet 204 and the puncture needle holder 201 is completed as shown in FIG. 5 is the initial position of the lancet body 203 (hereinafter referred to as the first position). ).
• the puncture needle cartridge 102 according to the second embodiment can be structured such that the puncture needle does not protrude when moving in the puncture direction from the first position in a state where it is not attached to the puncture tool. .
• a puncturing operation by the puncture needle cartridge configured as described above will be described with reference to FIGS. 9 (a) to 9 (f).
• FIG. 9 (a) is a cross-sectional view showing an internal configuration of the puncture device equipped with the puncture needle cartridge 102 according to the second embodiment before puncturing.
• FIG. 9 (b) is a cross-sectional view showing the internal configuration of the puncture device in a puncture standby state with the puncture needle protection cap 202 removed.
• FIG. 9 (c) is a cross-sectional view showing the internal configuration of the puncture device at the position where the puncture needle protrudes during puncturing.
• FIG. 9 (d) is a cross-sectional view showing the internal configuration of the puncture device after puncturing.
• FIG. 9 (e) is a cross-sectional view showing a configuration when the puncture needle cartridge 102 is discarded from the puncture device.
• the puncture needle cartridge 102 is mounted by being inserted into the puncture tool 101, and as shown in FIG. 9 (b), the puncture is started from the state of FIG. 9 (a).
• the needle protection cap 202 is removed, and the puncture preparation state is established with the urging force accumulated by the charge spring (not shown) of the puncture tool.
• the positional relationship between the lancet body 203 and the puncture needle holder 201 of the puncture needle cartridge 102 is the same before and after the puncture.
• the arm means 302 is located on the rear end side of the locked means 403.
• the puncture needle cartridge 102 is punctured with the first position where the arm means 302 is located on the rear end side of the locked means 403 as the puncture preparation position.
• the puncture device housing 602 grips the rear end portion of the puncture needle holder 201 and the plunger 601 grips the rear end portion of the lancet body 203 when the device is mounted.
• the arm means 302 is elastically deformed toward the center of the lancet body by the housing 602 of the puncture device and is waiting for puncture. That is, in the puncture needle cartridge shown in FIGS. 9 (a) and 9 (b), the arm means 302 and the housing 602 of the puncture tool are engaged, and the position of the arm means 302 of the lancet body is compared with FIG. Elastically deforms toward the center of the body.
• the puncture needle protection cap 202 is provided with a puncture needle holder cover 603 to make it easy to hold the protection cap when the puncture needle cartridge 102 is attached to the puncture device 101, and the puncture needle protection cap 202 is twisted off. Rotate to fit hand and make it easier to turn The part to be held is the knurled shape 604.
• the force applied to the knurled shape 604 so that the puncture needle protective cap can be easily fitted to the hand may be an octagon or a finger shape, which is not limited to this.
• the puncture needle protection cap 202 protects the puncture needle and prevents the lancet body 203 from moving inside the puncture needle holder while holding the puncture needle holder cover 603.
• the puncture needle holder 201 and the lancet body 203 are not moved relative to each other. That is, in the inner diameter portion 205 of the puncture needle holder 201, the lancet body 203 moves within the puncture needle holder by the puncture needle protection portion 307 of the puncture needle protection cap 202 and the tip of the lancet body 203 abutting each other.
• the lancet body 203 can be fixed so that it does not.
• the user places a finger or the like on the skin contact portion 402 of the puncture needle holder 201 and presses the puncture button (not shown) of the puncture tool 101.
• a puncture operation is performed by an operation such as pressing.
• the puncture needle cartridge 102 at the time of puncture is such that the plunger 601 is moved to the first position by the urging force of a charge spring (not shown) of the puncture tool.
• the lancet body 203 also injects and the lancet body 203 and the plunger 601 move in the distal direction, whereby the lancet body 203 moves to a position where the puncture needle protrudes (hereinafter referred to as a second position).
• the lancet body 203 moves in the distal direction because the arm means 302 of the lancet body is elastically deformed toward the center of the lancet body.
• the lancet body arm means 302 can puncture without cooperating with the locked means 403.
• the puncture needle 301 protrudes from the opening 401 of the puncture needle holder 201 and pierces the puncture site.
• the lancet main body first projection 303 and the puncture needle holder groove 404 are engaged with each other, so that the lancet body 203 can move linearly in the axial direction.
• the inner diameter 605 of the locking means 403 of the puncture needle holder may be configured according to the inner diameter 606 of the puncture device housing on which the puncture needle cartridge is mounted.
• the arm means 302 is locked means. Any configuration that does not cooperate with 403, that is, a configuration in which inner diameter 605 of locked means 403 is the same as or wider than inner diameter 606 of housing 602 of the puncture device.
• the lancet body holder second protrusion 304 and the puncture needle holder rear end surface 405 come into contact with each other, so that the lancet holder 201 moves away from the lancet holder 201. Prevents the body 203 from coming off.
• the puncture needle cartridge 102 after the puncture returns the lancet body 203 to the second positional force by returning the charge spring of the puncture tool to its original state. It moves toward the rear end and stops at a position that is closer to the front end than at the time of attachment but does not protrude from the opening 401 of the puncture needle holder 201, and this position is a puncture end position (hereinafter referred to as a third position). It becomes.
• the initial position of the lancet body 203 is set as the first position, and the first position is set as the puncture preparation position.
• the first position is set as the puncture preparation position.
• FIG. 9 (e) shows the puncture needle cartridge 102 at the time of disposal after the puncture operation.
• the user When removing the puncture needle cartridge 102 after the puncture is completed, the user first holds the puncture needle holder 201 from the state shown in FIG. 9 (d) and pulls out the puncture needle cartridge 102.
• the puncture needle holder 201 and the lancet body 203 move so as to move away from each other, whereby the lancet body 203 is engaged with the arm means 302 of the lancet body from the third position.
• the locking portion 305 of the arm means 302 of the lancet body is at the rear end 405 of the puncture needle holder, and the Z or first convex portion 303 is If the puncture needle holder groove 404 is brought into contact with the puncture needle holder groove 404 and further pulled out, the engagement between the lancet body 203 and the plunger 601 of the puncture tool and the engagement between the arm means 303 and the housing 602 of the puncture tool are released. With arm means 302 Elastic deformation toward the center of the lancet body is released. Thus, in the state after removal as shown in FIG. 9 (e), the lancet body also moves the third positional force to the first position.
• the arm means 302 Since the arm means 302 that has moved and further elastically deformed toward the center of the lancet body returns to its original position, the arm means 302 is engaged even if the lancet body 203 is moved in the puncture direction within the puncture needle holder. By cooperating with the stop means 403, the puncture needle does not protrude. Thereby, at the time of disposal, it is possible to dispose safely without requiring a puncture needle protection cap.
• FIG. 9 (f) is a diagram showing the internal configuration when the arm means 302 of the lancet body and the locked means 403 cooperate with each other, for example, once used, the puncture needle protection cap 202 is removed.
• FIG. 3 is an internal configuration diagram of the puncture device when the puncture needle cartridge 102 is to be attached to the puncture device 101 again. As shown in FIG. 9 (f), when the puncture needle cartridge 102 with the puncture needle protection cap 202 removed once is inserted into the puncture tool 101, the puncture needle holder 201 and the lancet body 203 are mutually connected.
• the arm means 302 and the locked means 403 cooperate with each other while moving so as to approach each other, and the arm means 302 is elastically deformed outward.
• the arm means 302 that spreads outwardly and the puncture entrance or housing of the puncture tool come into contact with each other, so that the puncture needle cartridge 102 cannot be completely attached to the puncture tool 101 and cannot be punctured again. . That is, the puncture needle cartridge that has been once punctured and removed from the puncture tool cannot be reused, and the puncture needle 301 does not protrude.
• the puncture needle cartridge according to Embodiment 2 of the present invention can project the puncture needle 301 only at the time of puncture, and the opening portion 401 force of the puncture needle holder is not limited to the time of puncture. Protruding the puncture needle 301 can be prevented.
• puncture needle cartridge 102 includes lancet body 203 having puncture needle 301 and puncture needle holder 201, and lancet body 203 further includes Arm means 302 is provided, and puncture needle holder 201 has a locked means 403 that cooperates with arm means 302, and when the arm means 302 and the locked means 403 cooperate, the lancet body Since the movement of 203 in the puncture direction is locked, the puncture needle can be projected only at the time of puncture, and the safety of the puncture needle cartridge can be improved.
• the arm means 302 of the lancet body 203 and the locked means 403 of the holder 201 cooperate with each other. The reuse of the used puncture needle can be prevented.
• the puncture device according to the present invention can simplify the puncture device manufacturing process, and can reliably prevent multiple punctures and reduce patient pain. Puncture needle This puncture force can be removed without touching the cartridge, and is useful in preventing infection.
• the puncture needle cartridge according to the present invention includes a puncture needle for exchanging a puncture tool used for blood collection and the like, and the puncture needle is accommodated therein so as to be movable, and is the same as the puncture needle. It is useful as a disposable puncture needle cartridge, having a puncture needle holder that is sometimes replaceable.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Surgery (AREA)
• Biophysics (AREA)
• Pathology (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Hematology (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Physics & Mathematics (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Dermatology (AREA)
• Pain & Pain Management (AREA)
• Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Priority Applications (9)

Applications Claiming Priority (4)

Related Child Applications (3)

Publications (1)

Family

ID=37308022

Family Applications (1)

Country Status (9)

Cited By (11)

Families Citing this family (20)

Citations (7)

Family Cites Families (34)

• 2006
  • 2006-04-27 PL PL06745794T patent/PL1878381T3/pl unknown
  • 2006-04-27 EP EP06745794A patent/EP1878381B1/en active Active
  • 2006-04-27 PL PL10196747T patent/PL2319396T3/pl unknown
  • 2006-04-27 EP EP10196740.4A patent/EP2319395B8/en active Active
  • 2006-04-27 PL PL10196740T patent/PL2319395T3/pl unknown
  • 2006-04-27 CA CA2746792A patent/CA2746792C/en active Active
  • 2006-04-27 KR KR1020077024720A patent/KR100904106B1/ko active IP Right Grant
  • 2006-04-27 DE DE602006020033T patent/DE602006020033D1/de active Active
  • 2006-04-27 EP EP10196747.9A patent/EP2319396B1/en active Active
  • 2006-04-27 CN CN2010102865169A patent/CN101912268B/zh active Active
  • 2006-04-27 PL PL10196737T patent/PL2314209T3/pl unknown
  • 2006-04-27 CA CA2607498A patent/CA2607498C/en not_active Expired - Fee Related
  • 2006-04-27 EP EP10196743.8A patent/EP2298161B1/en active Active
  • 2006-04-27 ES ES10196740.4T patent/ES2621266T3/es active Active
  • 2006-04-27 ES ES10196737.0T patent/ES2621230T3/es active Active
  • 2006-04-27 US US11/912,932 patent/US20090198265A1/en not_active Abandoned
  • 2006-04-27 EP EP10196737.0A patent/EP2314209B1/en active Active
  • 2006-04-27 ES ES10196747.9T patent/ES2629136T3/es active Active
  • 2006-04-27 WO PCT/JP2006/308911 patent/WO2006118224A1/ja active Application Filing
• 2010
  • 2010-04-08 US US12/662,279 patent/US8740923B2/en active Active
  • 2010-04-08 US US12/662,278 patent/US8062320B2/en active Active

Patent Citations (7)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events